Header problems

Hi
For many days I've been looking for a solution for my problems, I'm trying to make the header of the image. I'vtried in many ways.
1. putting all the background like a header background: I've tried the things i've seen in the forums but i cant see good results.
2. trying to put the black background like menubackground. The same as number 1.

Any advice how I can make it possible?

Many thanks.

Sorry for my English, it's not my best :D